Easy Feed Editor is a free tool to create and edit your own Feeds. Easy Feed Editor offers a wide range of features but still is very easy to use.
It does for example support RSS and ATOM and is able to directly upload your feed via FTP.
Easy Feed Editor is OpenSource and therefore completly free.
Easy Feed Editor is released under the terms of GNU General Public License (GNU GPL) v3 or (at your option) any later version.
The GNU GPL is a license for OpenSource software developed by the Free Software Foundation (FSF).
"The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program-- to make sure it remains free software for all its users.", part of the preamble of GNU GPL v3